Door.



PATENTBD-A-PR. so. 1907. o. A. GLOBKLER.

DOOR. APPLICATION FILED JAN.. 23, 1906.

fue Nouns PETER: co.. wasnmcrau, D. c.

UNITED STATES PAIIEII OFFICE.

DOOR.

aie. 851,879.

Speeieation of Letters Patent.

iatented April 30, 1907'.

Application tiled January 23,1906. Serial No. 297,525.

"e all zzz/wm t may concern.-

Be 1t known that I, CHARLES A. GLOEKLER, a citizen of the United States, residing at and useful Improvements in Doors, of which the following is a specification.

My invention pertains to the doors of the kind that are equipped at their lower ends with vertioally movanle strips, springs tenth ing to raise said strips, and deviees for foreing the strips downward against the aetion of the springs when the doors are Closed; and it eonsists in the peeuliar and advantageous door for Cooling or refrigerating ohamhers, hereinafter deserilied and claimed, whieh door and the meohanism for assuring downward movement of the vertieally movaole strip 'when the door is closed and upward movement of said strip when the door is opened are eon- -strueted with a view of withstanding the rough usage to which the doors of Cooling or refrigerating ohamhers are ordinarilyT suhjeeted.

In the aoeompauying drawing, forming part of this spefi'lieation: The Yligure is a perspeetive view of a refrigerating or cooling ehamher and a hinged door provided with my improvements.

Referring hy letter to the said drawing: A is the door opening of a refrigerating or eooling chamber. B is a horizontally swinging door, hinged at (L to a easing upright l) at one side of the opening A, and C is a vertieally and reotilinearly movalile strip, pre ferahly of wood, rahleted as indi(` ated hy c so as to rest partly at the outer side of the lower portion ofthe door and partly hetween the lower end of the door and the tloor, as shown. On its inner side the said strip C is provided with a paeking strip D, of felt, eanvas or other suitable material, which extends from its rahleeted portion to a point helow its lower edge so as to hear against the floor when the said strip C is depressed.

E E are hraekets connected to the outer side of the lower portion of the door and having outwardly extending studs d.

F F are slotted straps fixedly eonneeted to the strip C and reeeiving the studs d and seeured on said studs hy nuts e.

Cr G are brackets seeured to the fare of the door at a point ahove the hraekets E, and H H are (rank arms fixed on a rock-shaft I which is journaled in the hraekets G. Between the crank arms I^I and the straps F Y rooked in one direetion or the other. P1ttshurg,.1n the eounty of Allegheny and l State of Pennsylvanla, have invented new links Ii are interposed so as to assure the strip C moving vertiffally when the shaft I is The crank arms lil are fixed to the reak-shaft I through the medium of set serews which hear in sleeves q of the crank arms and against the said roek-shaft, and from this it follows that the position of the erank arms, relative to the roiik-shaft, may he changed whenever it is neeessary to eompensate for wear of the parking strip D or any other part of my improved meehanism.

In addition to the elements enumerated, the roek-shaft I is provided with a lever arm L. This lever arm is adjustahly vfixed hy a set sorew 7L on one end of the shaft I in position to he engaged hy a tappet M eonneeted to the outer side of the ehamher wall, and henee it will he apparent that when the door is closed, the shaft I will he roeked outward and downward and the straps F will he moved downwardly on the studs Z so as to erowd the strip C and its packing against the floor and in that way preolude the passage of air through the space between the lower end of the door and the floor. IVhen the door is swung open, the lever arm L is earried away from the tappet M with the result that the strip C is left free to he raised so as not to render dil'lieult the operation of movingl the door to its fully opened position.

In order to raise the strip C when the same is released as stated, I provide the traetile spring N whieh is connected at one end to one of the erank arms H and at its opposite end to a hook P held hy a nut Q to a hraeket R on the face ot the door. The said spring N is placed under tension when the strip C is depressed hy the cooperation of the lever arm L with the tappet M, and from this it follows that when the lever arm is moved away from the tappet the spring will tend to eontraet and hy so doing will raise the strip C and the appurtenances thereof. The (connection of l thel hook P to the hraeket R is preferably an adjustable one, as illustrated, so that the tension of the spring N may he readily regulated to suit different conditions.

It will he gathered 'from the foregoing that my improved mechanism is simple, Compact and well adapted to withstand the usage to which sneh mechanism is ordinarily suhj ected. It will also he gathered that my said meehanism is readily applieahle to a door without entailing change in the Construction thereot, and that proper adjustment of the parts to ICO IIO

take up wear may be effected without the necessity of employing skilled labor. It will Jfurther be appreciated Jfrom the foregoing that while the strip C will be crowded against the Hoor when the dooris closed with a view of preventing the passage of air between the lower end of the door and the floor, yet when the door is opened the floor is left free of obstruction so that trucks and the like maybe readily rolled into and out oi' the refrigerating or cooling chamber.

With a view of preventing the heavyT door usually employed from sagging and interfering with the proper operation of the strip C and the parts connected therewith, I provide the hanger S illustrated at the upper end of the drawing. The said hanger S comprises a bracket m connected to the wall of the chainber and having an upwardly extending post p, a rod section g pivoted on said post and arranged to swing horizontally, a rod section r connected through the medium of a iixture s to the door B, and a turn-buckle disposed between and adjustably connecting the rod sections g and r. Through the medium of the turn-buckle t, the rod ot the hanger S may be made as taut as desired, and when the said rod is in the proper state it will assist materi ally in sustaining the weight of the door and preventing sagging thereof.

The straps F are guided by the studs d and move against the smooth laces of the brackets E, and hence it will be observed that the vertical movementsof the said straps may be accomplished with the expenditure of but little force. i

I claim:

The combination of a door casing, a stamovable strip arranged at the lower end of the door, straps fixed to and extending upward from the said strip and having vertically slotted portions loosely receiving the studsof the brackets, nuts retaining said straps on said studs, brackets secured to the outer side of the door at points above the first mentioned brackets, a rock-shaft journaled in the upper brackets and having crank arms and also having a lever arm said lever arm arranged to be engaged by the stationary tap` pet on the closing of the door, links connecting the sai d crank arms of the rock-shalt and the straps on the strip, a bracket connected to the outer side of the door at a point above the brackets in which the rock-shaf t is ournaled, and having a vertically disposed aperture, a hook having a threaded stem extending loosely through the aperture of the bracket, a nut mounted on said threaded stem oi the hook, and a tractile spring extending directly between and connected to one crank arm of the rock-shaft and the said hook, whereby when the lever arm is engaged by the stationary tappet said spring will be expanded. y

ln testimony whereoi i have hereunto set my hand in presence of two subscribing witnesses.

CHARLES AJGLOEKLER. Witnesses:

J. J. MOORE, JOHN M. KANE. 

